Animal testing for the polio vaccine did not work.

: If animals had not been used in the laboratories to try and find a cure for the polio virus, many of us would be dead!! Animals have provided a safe way to find cures for human diseases that couldn't have safely been tested on humans. Animals and humans must act together to save this world.

Animal testing for the polio vaccine (because there is no cure) did not work. Check your facts. There are some interesting facts at MRMC.